Barberry William Penn DescriptionBotanical Name: Berberis x gladwynensis 'William Penn' A dwarf, spreading, evergreen with arching, spiney branches. Leaves are dark green, alternate, simple, obovate to oblong, 1/2" to 1 1/4" long, 1/4" to 1/2" wide. Profusion of yellow blooms in summer, followed by bronze-red foliage color in autumn. Good for an evergreen hedge or a natural barrier. Fast growth rate. Plant CharacteristicsPlant Category: ShrubsName: Barberry William PennPlant Type: Evergreen Flower: Yellow, 1/2" wide Mature Size: 4' x 6' Water: Moderate Exposure:: Full sun Spacing: 3Soil Type: Clay; loam; sand; acidic; alkaline; well drained Planting Time: Any season CommentsComments: One of the spinest of all barberries.